1 L). RYCAXTSTF.S. 419 



3. Bycanistes subcylindricus. 



Biiceros sub:;vlindricus, Sclater, P. Z. S. 1870, p. 638, pi. xxxix., 



1871, p. 489, fig. 1 ; Elliot, Ibis, 1873, p. 179 ; Marie, P. Z. S. 



1874, p. 423, woodcuts; Sclater, P. Z. S. 1879, p. 550, 18S2, 



p. 343 ; Shelley, Ibis, 1888, p. 54 [part.]. 

 Bycanistes subcylindricus, Elliot, Mo/i. Bacerot. pi. 29 [text] (1877). 

 Buceros (Bycanistes) subcylindricus, Dubois, Bull. Mas. Belg. iii. 



p. 201 [part] (1884). 



AdiiU female. Ear-coverts and most of the cheek-feathers greyish 

 white ; rest of head and neck black glossed with green, the ends of 

 the feathers greyish white ; back, wing-coverts, chest, and breast 

 black glossed with green ; inner side of shoulders, rutap, belly, and 

 tail-coverts white ; the bases of the primaries and secondaries, and 

 the terminal half of the last four primaries, the secondaries, aud 

 long scapulars white ; the rest of the first sis or seven primaries 

 and the middle parts of the other quills black ; basal part of tail- 

 feathers and terminal half of all but the centre pair white, remainder 

 of feathers black glossed with dark green : naked skin round the 

 eye and on the throat red (in skin) ; iris reddish brown ; legs black ; 

 bill and casque black, the latter extending nearly to the point of the 

 biU. Total length about 24 inches, wing 11'3, tail about 9, 

 tarsus 1'7. 



An immature female has the feathers on the lores edged with 

 rufous-buff, the tip of the middle tail-feathers white, and the naked 

 skin round the eye is dark blue. 



Hah. W. Africa. 



a, b. 5* ad. et imm. sk. W. Africa. Zool. Soc. Coll. 



(Types of species.) 



4. Bycanistes subquadratus. 



Bycanistes subquadratus. Cab. J. f. O. 1880, p. 350, pi. i.; Socage, 



Orn. Angola, p. 540 (1881) ; Elliot. Mon. Bucerot. pi. 28 [text] 



(1882). 

 Buceros subquadratus, Hnrtl. Ahh. nat. Ver. Bremen, viii. p. 203 



(1882). 

 Buceros (Bycanistes) subcylindricus, Dubois, Bull. Mus. Belg. iii. 



p. 201 [part.] (1884). 

 Buceros subcylindricus, Shelley, Ibis, 1888, p. 54 [part.]. 



Adult male. Resembles B. suhcyJindricus in general appearance, 

 but differs in having the black on the basal part of the inner pri- 

 maries and secondaries reduced to a wide bar, while the greater 

 coverts of these feathers have wide white ends instead of being 

 uniform black ; the casque is largo and resembles that of B. cris- 

 tati's in shape, rising high above the culmen anteriorly and ter- 

 minating abruptly quite two inches from the point of the bill ; bill 

 and casque black, the latter with a large yellowish-white patch 

 posteriorly, and in some specimens a yellowish line from the nostril 



2e2 



